[RFC,v2,2/2] QTest example for RISC-V CSR register

Commit Message

Ivan Klokov June 18, 2024, 6:44 a.m. UTC

Added demo for reading CSR register from qtest environment.

Signed-off-by: Ivan Klokov <[e-mail]>
---
 tests/qtest/meson.build      |  2 ++
 tests/qtest/riscv-csr-test.c | 47 ++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 tests/qtest/riscv-csr-test.c

Patch

diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 12792948ff..45d651da99 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -259,6 +259,8 @@  qtests_s390x = \
 qtests_riscv32 = \
   (config_all_devices.has_key('CONFIG_SIFIVE_E_AON') ? ['sifive-e-aon-watchdog-test'] : [])
 
+qtests_riscv32 += ['riscv-csr-test']
+
 qos_test_ss = ss.source_set()
 qos_test_ss.add(
   'ac97-test.c',
diff --git a/tests/qtest/riscv-csr-test.c b/tests/qtest/riscv-csr-test.c
new file mode 100644
index 0000000000..565395ac8e
--- /dev/null
+++ b/tests/qtest/riscv-csr-test.c
@@ -0,0 +1,47 @@ 
+/*
+ * QTest testcase for RISC-V CSRs
+ *
+ * Copyright (c) 2024 Syntacore.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#include "qemu/osdep.h"
+#include "libqtest-single.h"
+#include "libqtest.h"
+
+#include "libqos/csr.h"
+
+static void run_test_csr(void)
+{
+
+    uint64_t res;
+    uint64_t val = 0;
+
+    res = qcsr_get_csr(global_qtest, 0, 0xf11, &val);
+
+    g_assert_cmpint(res, ==, 0);
+    g_assert_cmpint(val, ==, 0x100);
+
+    qtest_quit(global_qtest);
+}
+
+int main(int argc, char **argv)
+{
+    g_test_init(&argc, &argv, NULL);
+
+    qtest_add_func("/cpu/csr", run_test_csr);
+
+    qtest_start("-machine virt -cpu any,mvendorid=0x100");
+
+    return g_test_run();
+
+}